Centre National De La Recherche Scientifique

Lioudmila Ermolenko

Pierre Potier

Joanna Bakala

Gisèle Franck

Nobumichi Andre Sasaki

Maria Concepcion Achab Garcia Alvarez

Qian Wang-Zhu

Naima Bakrim Nhiri

Naiema Bakrim Nhiri

Pierre (deceased) Potier

Nobumichi André Sasaki

Naïma Bakrim Nhiri

The invention relates to a compound having general formula I, wherein: X represents CH, C&#x2550;O, C&#x2550;S or CHOH, Rrepresents an amino acid optionally substituted by one or more halogen atoms, or by one or more CFgroups and n=0.1 or 2, or Rrepresents a peptide containing two amino acids, each amino acid being optionally substituted by one or more halogen atoms, or by one or more CFgroups and n=0 or 1, or XRrepresent POH or SOH and n=0.1 or 2; Rrepresents H, XR1, an alkyl group at C-C, an aralkyl group at C-Cor an aryl group, whereby the alkyl, aralkyl and aryl groups can be substituted by an amine NH, a carboxylic group COOH, one or more halogen atoms. 

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Lioudmila Ermolenko